proselytizing

I think i should just do yoga and not proselytize and I am sure many people share this view. So then why do I always feel compelled to suggest that people try yoga, convince my friends and known associates of its life transforming benefits, try to get more people to class? I don't really know the answer to this question but I'll try to come up with one nonetheless.  I don't want to use big words and sound bathetic but of course I will. but yoga is a gift, and like pathabi jois said everyone, old man, young man, sick man, can benefit from the practice. or is there my ego lurking in the back and i just want to be proven right when i see a class full of student that i recruited? omg... the path to nirvana is long and hard.